[[email protected] ~]# tune2fs -l /dev/sda1 |grep create
Filesystem created:       Tue Sep 27 13:01:00 2016
[[email protected] ~]# df -h
Filesystem      Size  Used Avail Use% Mounted on
/dev/sda3       296G  5.9G  275G   3% /
devtmpfs         63G     0   63G   0% /dev
tmpfs            63G     0   63G   0% /dev/shm
tmpfs            63G  9.2M   63G   1% /run
tmpfs            63G     0   63G   0% /sys/fs/cgroup
/dev/sda1       9.8G  139M  9.1G   2% /boot
tmpfs            13G     0   13G   0% /run/user/0
[[email protected] ~]# 

.